New Random Generator of a Safe Cryptographic Salt Per Session

Nowadays, client authentication in Web applications for each user based on passwords and a statically salts [11, 13, 18, 19]. The aim of this article is to propose random generator of a safe cryptographic salt per session (RGSCS). The interest to introduce this regenerator is to contribute to the evolution of the cryptographic quality of the systems of strong zero knowledge authentication based on passwords. In Section 3, we propose a model for regeneration a SOTS based on random functions and on CRC code. To study the behavior of the RGSCS, which is the objective of Section 4, we have, in one hand, defined and proved a metric on the finite set of periodic binary sequences not necessarily the same period, the uncorrelation, the impact of the distribution of lengths and the unpredictability of primitive signals and in the other hand, evaluated the performance of our purpose by using several tests. The outcome showed that RGSCS has a chaotic behavior. As for Section 5, is devoted to the implementation of our RGSCS algorithm under PHP5. This article is finished by a conclusion.